Here's the question you clicked on:
stupidinmath
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|dw:1389792062845:dw| So.. radius is 18.. so, Area of circle: A = πr² A = π(18)² A = 324π A = 1017.88cm² approximately :)
For inscribed circle, Radius = \[9\sqrt{3}\] For excribed circle, Radius = 18
oh, really? thanks:)
you are close, but you found the radius to the circle that goes around the hexagon (the circumcircle). It always helps to sketch the problem to help catch these mistakes. |dw:1389796392224:dw|